Because I don't like dealing with a large amount of packages to be upgraded
Interesting
and your actually saying this with a straight face using sid
The unstable repositories are updated every 6 hours. This happens in debian 4 times per day, each versus 05:00, 11:00, 17:00 and 23:00
This can be/will be/most likely be/ etc .. large amounts of packages in a sid environment, and don't get me started with transitions
Sooner or later, and I don't care who you are, practicing this hold shit will bite you in the ass sooner or later, you are, after all, a human
It happens to the best of us, and because it does happen, we learn from past mistakes, well, there are exceptions, some people never/want to learn.
All that being said, it's your machine, you do it your way